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Finding the Third Proportional to 135.25 and 195.50

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Solution

The third proportional to 135.25 and 195.50 is: 282.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.25 : 195.50 = 195.50 : x
  2. Step 2: Convert to fraction form
    135.25/195.50 = 195.50/x
  3. Step 3: Cross multiply
    135.25x = 195.50 × 195.50
  4. Step 4: Simplify right side
    135.25x = 38,220.25
  5. Step 5: Solve for x
    x = 38,220.25/135.25
  6. Step 6: Final answer
    x = 282.59

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.